Description

1 2:5 6-Bis-o-(1-Methylethylidene)-1D- is a specialized organic compound, a derivative of a protected sugar or polyol, valued for its role as a key chiral building block and protecting group in complex organic synthesis. Its primary commercial value lies in enabling the precise construction of stereochemically defined molecules, which is critical for developing high-value fine chemicals and active pharmaceutical ingredients (APIs). This product is essential for research institutions and manufacturers in the pharmaceutical, agrochemical, and advanced material sectors seeking reliable, high-purity intermediates for their synthetic pathways.

Application

• Pharmaceutical Intermediate: Serves as a crucial chiral synthon in the synthesis of nucleoside analogs, antiviral agents, and other complex drug molecules.
• Agrochemical Synthesis: Used in the production of advanced, stereoselective pesticides and herbicides where specific molecular configuration impacts biological activity.
• Fine Chemical Production: Acts as a building block for specialty chemicals, flavors, fragrances, and liquid crystal materials requiring defined stereochemistry.
• Academic & Industrial Research: A valuable reagent in methodological development and scale-up studies for asymmetric synthesis and carbohydrate chemistry.
• Polymer Science: Potential monomer or modifier for creating polymers with specific architectural or functional properties.

Basic Information

Product Name	1 2:5 6-Bis-o-(1-Methylethylidene)-1D-
CAS No.	40617-60-5
Molecular Formula	C8H14O4
Molecular Weight	174.19 g/mol
Synonyms	1,2:5,6-Di-O-isopropylidene-D-mannitol; Diacetone-D-mannitol; D-Mannitol 1,2:5,6-diacetonide; 1,2:5,6-Di-O-(1-methylethylidene)-D-mannitol; 1,2:5,6-Diisopropylidene-D-mannitol; D-Mannitol diacetonide; (2R,3R,4R,5R)-2,2,5,5-Tetramethyl-1,3,4,6-tetraoxacyclohexane-3,4-diol
EINECS	Contact for details

Quality Control

Our 1 2:5 6-Bis-o-(1-Methylethylidene)-1D- is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with key parameters including assay (by HPLC or GC), chiral purity, and moisture content, meeting the stringent requirements of our global clientele in research and regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.